I think I may have invented an alternative anti-pullout device that works even if you have a foreskin. It is basically a variant of the ring or cord round the glans method. The difference is that I have shaped the ring carefully so that it can be slipped over the glans, but once it is moved into the final position and locked to the tube it will not come off. I call it a loop rather than a ring, because of the shape. I don’t know what would happen if I pulled really hard, but I don’t intend to try that! I am uncut but I can slip it on then bring the foreskin over the top of it. At the moment I am using it to keep me locked into my upright tube. The tube is very tight so I can’t swell very much. If the tube were larger perhaps the swelling would make the loop too tight. If that is taken into account, I think the technique should work to as an anti-pull out for a whole variety of devices. I have tried it briefly with my full belt, but I really need to lose a bit of covid weight gain. I hope there is some interest in this because I know there are lots of people who want a ringless device but don’t like or can’t use the alternatives and also those who want to prevent pull out from a ringed device. There are photos and diagrams in my album “My unusual devices”. I wanted to keep this post reasonably short. I will post more details if requested.